Question

2
Q6. A two digit number is
formed with digits 2,3,5,7,9
without repetition what is the
probability that the number
formed is a multiple of 5?​

Answer 1

Answer:

P(E) = 1/5

Step-by-step explanation:

let 's' be the all possibilities

s = { 23, 25, 27, 29, 32, 35, 37, 39, 52, 53, 57, 59, 72, 73, 75, 79, 92, 93, 95, 97}

n(s) = 20

let 'E' be the event of a multiple of 5 being formed

E = { 25, 35, 75, 95 }

n(E) = 4

P(E) = n(E)/n(s) = 4/20 = 1/5

thus, probability is 1/5.